diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2015-05-19 16:37:02 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-06-07 19:58:28 +0300 |
| commit | 4861a007bfd71a9fc0a83cc7fad41dda9bf8b5b7 (patch) | |
| tree | da2f7a5ecfcac29630e81ec33383b8f43003c1bf /drivers/iio/common | |
| parent | bf04c1a367e3d52b2e071cc7c7047c27dc1c3c5f (diff) | |
| download | linux-4861a007bfd71a9fc0a83cc7fad41dda9bf8b5b7.tar.xz | |
iio: st_accel: support 8bit channel data
Some sensors like the LIS331DL only support 8bit data by a single
register per axis. These utilize the MSB byte. Make it possible
to register these apropriately.
A oneliner change is needed in the ST sensors core to handle 8bit
reads as this is the first supported 8bit sensor.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/common')
| -rw-r--r-- | drivers/iio/common/st_sensors/st_sensors_core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index 1255b157c71c..bf4b13f9defc 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -433,7 +433,9 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev, if (err < 0) goto st_sensors_free_memory; - if (byte_for_channel == 2) + if (byte_for_channel == 1) + *data = (s8)*outdata; + else if (byte_for_channel == 2) *data = (s16)get_unaligned_le16(outdata); else if (byte_for_channel == 3) *data = (s32)st_sensors_get_unaligned_le24(outdata); |